Having a child out of wedlock is also another thing that many people find taboo. Most people believe that you should be married to have a child. Many people who have children out of wedlock are afraid of how the public will view them.
Had to laugh a bit at this one. We have seen this behavior so many times, all the way down to pushing a strangers baby carriage while his kids were screaming at the ball field with their faces in the dirt after daddy stood them up for another girl.